First in situ evidence of wakes in the far field behind offshore wind farms

Journal Article

Title: First in situ evidence of wakes in the far field behind offshore wind farms
Publication Date:
February 01, 2018
Journal: Scientific Reports
Issue: 8
Pages: 1-10
Publisher: Springer Nature
Stressor:

Document Access

Website: External Link
Attachment: Access File
(5 MB)

Citation

Platis, A.; Siedersleben, S.; Bange, J.; Lampert, A.; Bärfuss, K.; Hankers, R.; Cañadillas, B.; Foreman, R.; Schulz-Stellenfeth, J.; Djath, B.; Neumann, T.; Emeis, S. (2018). First in situ evidence of wakes in the far field behind offshore wind farms. Scientific Reports, (8), 1-10.
Abstract: 

More than 12 GW of offshore wind turbines are currently in operation in European waters. To optimise the use of the marine areas, wind farms are typically clustered in units of several hundred turbines. Understanding wakes of wind farms, which is the region of momentum and energy deficit downwind, is important for optimising the wind farm layouts and operation to minimize costs. While in most weather situations (unstable atmospheric stratification), the wakes of wind turbines are only a local effect within the wind farm, satellite imagery reveals wind-farm wakes to be several tens of kilometres in length under certain conditions (stable atmospheric stratification), which is also predicted by numerical models. The first direct in situ measurements of the existence and shape of large wind farm wakes by a specially equipped research aircraft in 2016 and 2017 confirm wake lengths of more than tens of kilometres under stable atmospheric conditions, with maximum wind speed deficits of 40%, and enhanced turbulence. These measurements were the first step in a large research project to describe and understand the physics of large offshore wakes using direct measurements, together with the assessment of satellite imagery and models.

Find Tethys on InstagramFind Tethys on FacebookFind Tethys on Twitter
 
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.